Groton, CT 06349 ZIP Code Profile

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Groton, CT

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ZIP Code 06349: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Groton, CT 06349

Not Acceptable, USPS
Naval Submarine Base, CT 06349
Navsub Base, CT 06349
Sub Base New London, CT 06349
Submarine Base, CT 06349

  • ZIP Code Type: PO BOX
  • County: New London County
  • Centroid: Latitude 41.402, Longitude -72.089
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 83
  • PO Box Addresses: 112
  • Residential Addresses: 0
    • Multi-Family Addresses: 0
    • Single Family Addresses: 0

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


06349 ZIP Code Map

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Groton, CT 06349 Data & Demographics (As of July 1, 2017)


Total Population 2,464
Daytime Population: Workers 4,465
Daytime Population: Residents 6
Total Daytime Population (TDP) 4,471
Ratio TDP/Total Population1 1.81
Population in Households 15
Population in Familes 11
Population in Group Qrtrs 2,449
Population Density2 2,767
Diversity Index3 59


Median Household Income $53,480
Average Household Income $52,549
Per Capita Income $18,727


Total Housing Units 12 (100%)
Owner Occupied HU 1 ( 8.3%)
Renter Occupied HU 4 (33.3%)
Vacant Housing Units 7 (58.3%)
Median Home Value $225,000
Average Home Value $225,000


Total Households 5
Average Household Size 3.0
Family Households 3
Average Family Size 4
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 5.98% 0.0%
Households 0.0% 0.0%
Families 0.0% 0.0%
Median Household Income   2.33%
Per Capita Income   0.01%

Groton, CT 06349 - Peer Comparisons by Rank and Percentile

The table below compares 06349 to the other 275 ZIP Codes in Connecticut by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 226 18th
Population Density # 51 82nd
Diversity Index # 57 80th
Median Household Income # 239 13th
Per Capita Income # 265 4th

Additional comparisons and rankings can be made with a VERY EASY TO USE Connecticut Census Data Comparison Tool.

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